BLACK MAIDEN-HAIR SPLEENWORT. 



Aspleniitm Adiantum-nigrum. LINN.ETJ8. 



The true Spleenworts (so called from some old-time 

 supposed virtue in curing diseases of the spleen) are 

 small evergreens, known from all other of our native 

 Perns, except CeteracJi, by the long narrow single sori 

 lying in the direction of the veins which traverse the 

 fronds, Ceterach being distinguished from them by 

 having the backs of its fronds clothed with brown 

 scales, under which the sori are hidden. From their 

 F 



